Internal-combustion engine.



PATENTED JAN. 29, 1907.

W; BURCH ALL. INTERNAL GOMBUSTION ENGINE. APPLIOATION'I'ILBD NOV..-12. 190a. RENEWED Mn. 3, 1907.

UNITED sTA-rEs .'WlLLI1lM BALLANTYNE TEN 'QFFICE BURCHALL, or STOOKPORT,*ENGLAND.

' INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Application filed November 12,1903. Renewedll'anuary 8. 1907. Serial No. 351,896- I .To all whom it may concern:

Be it known that I, WlLLiAM BALLANTYNE BURCHALL, of Dungowan", Bredbury, Stockport, in the county of Cheshire, England, engineer, have invented certain new and useful Improvements in and Connected with In .ternal-Combustion Engines, the Same being also A plicable to Steam-Engines, of which the fol owing isa specification.

This invention, which relates to ,im rovements in and connected with interna -com 'bustion engines, the same beingalso appli-i cable to steam-engines, has for its object to and pistons so as to be truly cylindrical and so that by the-absence of bosses or projec 'tions these surfaces may not be distorted when under the influence-of great heat; to

2 5 obtain more equable ratios of ex ansion of I cylinders and pistons when heate also, to

provide means whereby the pressure due to -weights of reciprocating parts and obliquity of connecting-Prods may be received by-other o surfaces than those ofithe cylinders and pistons and-in such manner that these do not tend to wearfro n their ori al form and'to obtain by. arrangement an combination of such cylindersand pistons regularity of turnmoment, balancing of motor impulses and inertia forces, and freedom from vibration. I a

a In engines constructed according'to this invention use is made of an open-ended cyl- 4oinder having a transverse partition. T l 'ns cy1inder is mounted and caused to move to and fro on fixed:pistons. -,These latterare v mountedto slide one. plane surtacc J; but

fitted with valves andports, so that gasor fluid may beadmitted to one onboth ends of :the cylinder, as desired,in order-to causethe cylinderte' .niove-lto and fro; ",Ininternalcombustion engines-such cylinders may be constructed. ;with a'water-jacket, and'suchj Q transverse} partitions may be cooled by, 5'0 means ofairorwatel -circttlating in cavities in Tth'epartitionfi-and. such fixed pistons may be "cooled means of orwatercirculating in annular spaces in the. pistons In steamengines such annular spaces-may be used as steam-jackets. a

The accompanyingdrawings illustrate diagrammatically the construction and application. according to this invention.

. Inall diagrams like letters indicate like parts.

' Figure 1 shows arrangement in plan of two such cylinders with transverse partition and with such artition common to both cylinders. It al o shows fixed pistons and crankshaft with two cranks in line and connectingrods in section. Fig. 2 shows a longitudinal vertical section of such cylinder and pistons, with cylinder sup ort. and slide, also'connecting-rod and cranil r-shaft, taken on the line my, Fig. 1'.

Referring to Figs. 1 and 2, the arrangements shown are such {as-would be used on a double-acting internal-combustion engine workingon the Otto cycle principle. The

open-ended cylinder a, constructed with a transverse partition I), is mounted and moves Patented Jan. 29,1907.

to and fro on stationary istons c c, which are fixedto' the base or so e plate d. Fluid,

elastic or. non-elastic, is admitted to the ends of. the ay'linder through inlet-valves e e andports f and the waste products areallowed to escape by means of the valves 9 g.

Roy

"The pistons c c are or maybe constructed with annular spaces h h and arefitte'd with expansion-rings1c k. The valves 6 and g and firlng-gear when attached may be of an .eflicient design, and this gear is so arrange that the impulses obtained-cause the cylinder (1 a to move to anddfro on the pistons c c. This motion is transmitted through the connect-- ing-rods 'n, to the c'rank-shafto by the interme'diary of pins m m, integral with or other- Wise suitably connected tothe cylinders.

-As shown in 2, the cylinder may be I would only be necessary in'engines havaryistonsspaced apart on said'base-plate and aving an open inner end and a tapering .bore-extendmg from'the inner end to the outerend of the pistons, a cooling-jacket surrounding the bore of the piston and extendand'outlet valvesin the extreme outer ends 1o ing outwardly from the mner end of each of said pistons.

piston, an open --ended cylinder having. a In testimony whereof I have hereunto aftransverse partition-wall therein andinount? fixed my signature in presence of two wit- 5 ed to slide on said cooling-jackets, expansionnesses.

rings between said 'ackets and said cylinder, WILLIAM BALLANTYNE, BUitCHALL. a grude projecting cm the base-plate inter- Witnesses: mediate of the pistons and adapted for slid- JOHN LIDDLE,

i'ng engagement with the cylin er, and inlet, JOSEPH HENRY PEARSON. 

